This module computes the preferential deposition and redistribution of snow by the wind (see Snowdrift). It is enabled using the "--enable-drift" command line option. The 3D wind fields are read using a GRID3D MeteoIO plugin such as ARPS:
The WINDFIELDS key must be defined in the [Input] section and contains a space delimited list of wind fields files (here within GRID3DPATH) and associated number of time steps: